Improved railway ohaeb



- ,-M.C.MURRAY.I

" RAILWAY CHAIR.

No. 61,445. Patented Jan. 22, 1867.

may 2 gums gist-tea gaunt @ffifinz.

IMPROVED RAILWAY CHAIR.

flit: Sztctule teittrttf in in these itetters hatch mm making cm at flge sauna.

TO ALL PERSONS TQ WHQM THESE PRESENTS SHALL COME: I

Be it knownthat 1, MICHAEL O. MURRAY, of West Acton, inthe county of Middlesex, and State of Massachusetts, have inventedan ImprovedRisilway- Chairs and I do hereby dcdlare the same to be fully described in the following specification, and roprescnted'inthe accompanying drawings, of which- Figure 1 is a. top view of the chair and portions of thotwo rails supported b it. Figure 2 is a top view of the two rail, portions. Figure 3 is a. transverse section; and Figure 4 a horizontal section of such chair.

"Figure-5 is a side elevation of the chair and its nut-holdcr.

The main body of the chair is a base-plate, A, and a. lip or jaw, B, east or made of one piece, and in the form as represented. The base-plate has a rebate, a,. for receiving and supporting the movable lip or jaw C, an inner side view and an end of which are represented in Figuies 6 and 7. The said movable jaw has shoulders, I: b, projecting from its bottom and inner side, sons to go underneath the rails and clasp opposite edges of the base-plate. There is also at the middle of the inner side of the jaw O a rectangular projection, 9, there being another-such projection, e, at the middle of the inner side of the fixed jaw. The two rails, at theirabutting ends, are notched, as shown at (Z 11, so as to receive the said projections a a, the object oi the said notches and projoctions being to prevent one rail from being shoved against the otherso as to displace it in the chair, whether such movement of the rail be caused by the wheels of carriages or by expansion of the 'rail by an increase of temperature. The object of the shoulders I: b, when used in connection with the projections c c and notches d d, is to pre'vent displacement of the jaw C on the base-plate, in directions parallel with the rails also to lock the jaw C to the rails, so as to cause them to press it .down upon its seat while a carriage may be running on themat their" junction. The movablejaw is to be connected with the fixed one by screw-bolts, g g,'provided with nuts, h It. The base-plate, aswell as the'niovablc jaw, is to have holes for the reception of spikes used in confining the hhair to ,the sleepers or ties of the superstructure of a railway. Furthermore,in order that these nuts maybe prevented from revolving on-their screws of the bolts, I employ what I term the nut-holder .1), which isapieoe of metal not only made with right-angular recesses, ii, to receive the nuts in manner as shown in-fig. 5, but with a fi ange, k, to rest on the base-plate A, and to he held thereto bythc spikes Z l, which are to go through the flange and base-plate and into the timber to which the chair is to be fastened. The nutholder serves to keep the nuts in place on the-bolts.

I do not claim the construction of chair as represented in the United States Patent No. 34,612, granted to C. J. Hall and Franklin Decker, March 4, 1862. My invent-ion difi'eis very materially therefrom, as it has a single base'plate, A, to extend from the jaw 13, and made with a rebate, a, to receive the movable jaw C, whereas the chair of the said par-ties has its ba'se-plateformcdin two parts, grooved and tongued together, and each of such parts carries a. jaw formed in one piece with it. With my invention the jchv C is separate from and rests on the base-plate, and is provided with-shoulders, b b, projecting from its bottom and inner side, so as to go underneath the rails and clasp opposite edges of the base-plate. Furthermore, with my invention the notches in the rails are arranged at their junction or ends, so that half or a part of each notch is made in each of'the two abutting rails, the same being as shown in fig. 2, but in the patented chair a full notch is made in each-rail, and

ate. distance from its end, and thereby prevents the rails from contracting as they may become cooler. With my improvement the rails can so contract, and they are prevented from being forced against one another bythe projeetionsc c. I

I claim the improved chair, as constructed with the base-plate A, separate from and to extend under and support the" jaw C, and as having the rebate a, and as provided with thc'projections c c',and the shoulders b 6, arranged with respect to the base-plateA and the jaws B C,'and so as to extend into. and under the rails, as

I also claim the rails as made with the notches'd 11 arranged in them at their joint. or ends, as specified, and

to be used with the chair made nsexplained.

I also claim the nut-holder D, as made with the nut-recesses i i and the flange k, or their equivalents? MICHAEL c. MURRAY.

Witnesses:

RH. Em r, F. P. HALE, Jr..' 

